Here is just some of the snake oil. They take one nugget of truth and exaggerate it to the point of it becoming blatantly false. Seachem isn't the only company that does this, but they are one of the worse ones.
- Cupramine is EFFECTIVE against flukes when it has little to no effect.
- Prime "detoxifies" ammonia when they admit that all it does is convert NH3 to NH4 and chemists on this forum have failed to verify that even that claim actually happens.
- Matrix has superior surface area to other filtration and is 100% reef safe (LR has more and matrix leaches aluminum which is not reef safe long term).
- fish can absorb metroplex and cure internal parasites, when most of the time is only effective when consumed at proper weight dosing in medicated food.
- metroplex is an EFFECTIVE treatment against ich and velvet when it has no proven success in treating velvet outbreaks that I have ever found and is objectively inferior to copper.
I think you might be mixing up the matrix aluminum with phosguard. Unless I missed thread somewhere? Matrix is just pumice stone.